Aaron is a screenwriter, professor, and Secretary-Treasurer of the Writers Guild of America West. He is best known for co-creating and co-writing the successful AIR BUD family film franchise, which sired eleven sequels.

Aaron has a number of projects in development including the drama pilot BAD MEDICINE with ITV America and the action comedy ARMOR HERO with Alpha Pictures. His romantic comedy LIKE CATS & DOGS aired recently on the Hallmark Channel. He recently wrote the animated feature PRINCES for Warner Bros, the drama pilot THE ASSOCIATE for Sony, and the animated pilot HOODS for Cartoon Network. Other produced projects include the perennial ABC Family holiday movie THE 12 DATES OF CHRISTMAS, the Lifetime TV movie CHANGE OF HEART, the Fox TV series KINDRED: THE EMBRACED, the kids TV pilot THE ADVENTURES OF TAXI DOG, the family feature THE THREE INVESTIGATORS: THE SECRET OF TERROR CASTLE, and the independent feature CHAPTER ZERO, which he also directed. Aaron has also written film and TV projects for Fox, New Line, Showtime, Paramount, the Spike Network, New Regency, Hasbro Studios, Bob Yari, Lightstorm, and Arnold Kopelson.

Aaron has also worked extensively in new media. Shortly after the Writers Strike of 2007, Aaron assembled a group of Oscar and Emmy Award-winning writers and founded Virtual Artists, a digital studio that produced sponsor-supported, "water cooler" entertainment for new media platforms. Virtual Artists clients included NBCU Digital, Paramount Digital, GE, Group M, Mark Burnett and many other top media companies, agencies and brands.

In addition to his writing, Aaron is a Professor of Screenwriting at Loyola Marymount University in Los Angeles. Prior to his screenwriting career, he worked in the music industry and produced laserdiscs for the Criterion Collection.

Before being elected Secretary-Treasurer of the WGAW in 2015, Aaron served five terms on the Board of Directors. He also serves on the WGA National Council. He is represented by Paul Weitzman at the Abrams Artists Agency and Jeff Holland and Stan Spry at the Cartel.

Aaron's ebook, The 11 Fundamental Questions: A Guide to a Better Screenplay, in which he shares his successful story-crafting technique, can be found here.